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the question is --is the engine running and performing correctly
if the marks are off by one tooth then it was installed incorrectly but answer the first question--is it running good
if it is then the timing is correct or else the performance will be off
AS to the overheating and white smoke , have a compression test done as it could be a head gasket or cracked head
Smoke oil? For what your thinking that is oil? Smoke coming from the
tailpipe is not good news, but does not necessarily mean the engine
needs rebuilding. First, you need to determine what color of smoke is
coming from the tailpipe * White smoke is caused by water and or antifreeze entering the cylinder, and the engine trying to burn it with the fuel. The white smoke is steam. There are special gaskets (head gaskets are the primary gaskets) that keep the antifreeze from entering the cylinder area. * Blue smoke is caused by engine oil entering the cylinder area and being burned along with the fuel air mixture. As with the white smoke, just a small drop of oil leaking into the cylinder can produce blue smoke out the tailpipe. * Black smoke is caused by excess fuel that has entered the cylinder area and cannot be burned completely. Another term for excess fuel is "running rich." Poor fuel mileage is also a common complaint when black smoke comes out of the tailpipe. Black smoke out the tailpipe is the least cause for alarm.
If you confirm us that is oil smoke, check and keep in mind that the car has many seals, gaskets, and
O-rings that are designed to keep the engine oil from entering the
cylinder, and one of them has failed. If too much oil leaks into the
cylinder and fouls the spark plug, it will cause a misfire (engine miss)
in that cylinder, and the spark plug will have to be replaced or cleaned
of the oil. Using thicker weight engine oil or an oil additive designed
to reduce oil leaks might help reduce the amount of oil leaking into the
If it is running really rich the color of the smoke out of the tailpipe would be dark grey or black. Some white smoke out of the tailpipe is normal in cooler weather until the vehicle engine warms up. Otherwise white smoke may be an indication of the engine burning coolant (cracked head, headgasket etc). I would take it to an auto parts store and have them scan the car's computer for codes. This is usually a free service. A code may be present even if the engine checklight is not on. A trouble code will make it easier to determine what is the cause of your problem. There are numerous things that can cause the problem you are having. Also knowing the mileage of the vehicle will help. Sorry that I am unable to help you more at this time.
What color smoke out of the tailpipe ? Black - running rich , too much fuel or not enough air . Blue smoke - burning oil , piston rings valve seales , white smoke could be two different thing's - coolant in the cylinders or fuel going stright through the cylinder out the tailpipe . No combustion .
Check engine light on ? Have you replaced plugs an plug wires ,air filter , any engine sensors - TPS - MAP - MAF etc.... How many miles on the vehicle ? 1988 model - engine worn out ?